Collecting cup



E. M. VOIGT COLLECTING CUP Jan. 7, 1930.

' Filed June 20, 1928 Patented Jan. 7, 1930' PATENT OFFICE nnunnn MAX voice, or KOENIGSBERG, GERMANY COLLECTING CU]? Application filed June 20, 1928, Serial No. 287,021 and in Germany July 13, 1927.

My invention relates to a cup for collecting and saving the valuable waste produced during the working on articles made of precious metals. It is also suited to catch the article 5 worked on should the latter slip from the hand, and thus save it from being damaged or lost. It can be held with the hand which usually holds the article to be worked on and follows every movement of the fingers holding said article, is always below the spot worked on, provides a rest for the hand manipulating the working tool and is therefore a useful and valuable instrument for dentists and all workers in precious metals who work on gold inlays, gold crowns, gold bridges, jewels and other articles made of such metals.

WVith these and other objects in view, the

invention consists in certain novel features of construction as hereinafter shown and descrlbedand then specifically pointed out in the claims, and. in the drawings illustrative of the preferred embodiment of the invention.

In the annexed drawing, Figure 1 represents a perspective view of a collecting cup embodying my invention.

Figure 2 represents a view from one side. Figure 3 represents a view from theoppd site side. Similar letters of reference indicate corresponding parts in the several figures.

. According to the drawings, the collecting cup at consists of the bottom r, the front wall Z2, the back wall 0, and the two side walls at and m, which are lower than the front andback walls. In the side wall it are twoopen- 'ings d and e, and the bottom 7' has an inward bend or curve 9.

When the cup is used the thumb is passed from the outside through the opening cl and the ringfinger through the opening 6. 'The forefinger and themiddle finger rest on the I rim of the side wall a. The small finger sup or curve 9 of thebottom r. If more convenient, the middle finger can be substituted for the ringfinger and passed through the open 'ing 6, and the ringfingercan support the cup by taking the place ofthe small finger in the.

curve 9 of the bottom 7".

ports the cup (1 by being placed in the bend where the hand holds the handle 70 to operate the grinding stone 0 which by a shaft passing through the handle 7c andthe flexible shaft 10 is connected with the motor of the dental drilling and grinding machine.

I wish it to be understood that 'I do not desire to be limited to the exact details of construction shown and described, for obvious modifications will occur to a person skilled in the art.

What I claim is:

1. A collecting cup for the purpose set forth having a bottom, a front wall, a back wall, a side wall, and another side wall provided with openings for the fingers which are to hold the cup and the article to be worked on.

2. A collecting cup for the purpose set forth having a bottom, a high front wall, a high back wall, a low side wall provided with. openings for the fingers which areto hold the cup and the article to be worked on and also having a rim for the repose of the other fingers holding the article to be worked on, and a low side wall provided with a rim for the support of the hand holding the work ing tool. V

A collecting cup for the purpose set forth having a front wall, a back wall, a side wall provided with openings for the fingers which are to hold the cup and the article to be worked on, aside wall having a rim for supporting the hand holding the working tool, and a bottom provided with an inward bend or curve adapted to place in it, for the purpose of supporting the cup, one of the fingers of the hand holding the cup and the article to be worked on. a

In testimony whereof I afiix my signature.

EDUARD MAX VOIGT. 

